The access grid
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The Access Grid. An Introduction. Rick Stevens, Terry Disz, Lisa Childers, Bob Olson Argonne National Laboratory www.mcs.anl.gov/fl/accessgrid ([email protected]). Physical Node Design. Presenter mic. Spaces for small groups Wide field of view Comfortable Persistent connection.

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The Access Grid

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The access grid

The Access Grid

An Introduction

Rick Stevens, Terry Disz, Lisa Childers, Bob Olson

Argonne National Laboratory

www.mcs.anl.gov/fl/accessgrid

([email protected])


Physical node design

Physical Node Design

Presenter

mic

  • Spaces for small groups

  • Wide field of view

  • Comfortable

  • Persistent connection

Presenter

camera

Ambient mic

(tabletop)

Audience camera


Audio

Audio

  • Hands free

    • No click to talk

    • No searching for microphones

    • Never have to think about microphones

  • Interactive

    • Interrupt other speakers

    • Multiple conversations at the same time

    • Full duplex

  • Clear

    • No background noise

    • Rich-sounding speech

  • No feedback

  • No echo


Video

Video

  • Scale of imagery life-sized

  • Highest quality, but affordable

  • Multiple video streams

    • Presenter close-up

    • Audience view

    • Audience close-up

    • Display wall


The access grid

Data

  • Shared

    • Powerpoint

    • VNC

    • Visualization

  • Archived

    • Voyager


Network

Network

  • Hardening multicast infrastructure

    • http://beaconserver.accessgrid.org:9999/

  • Large-scale networking testbed

    • Higher bandwidth

    • QoS

  • Networking people active members of the AG community


The muds

The Muds

  • Two muds are used in the AG community

    • Access Grid Hangout Room

      • Character generation is controlled

      • Characters reside there permenantly

      • Long-term social relationships have developed

    • Access Grid Venue

      • Character generation is automatic

      • Characters come and go

      • Usage is event-driven


Virtual collaboration spaces

Virtual Collaboration Spaces

Virtual Venue

  • A persistent location on the grid

    • Not a physical space

    • A dimension in which several physical spaces can be co-located

    • A place that can be entered and exited

  • Supports multiple interaction modalities

    • Text, audio, video graphics, animation, VR

  • A scoping mechanism to support multiple concurrent meetings

  • A resource that can be reserved


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